spi_nor_regi...heck_overlay(9)

💅 spi_nor_regi...heck_overlay(9)

okay bestie, welcome to the Kernel API Manual ✨ and yes the title is literally truncated with ... in the middle, that's just how it's printed, not a me thing, the kernel is just Like That 💀

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🌸 NAME 🌸

spi_nor_region_check_overlay — sets the overlay bit when the region is overlaid. that's it. that's the whole job. lowkey iconic for being so specific 🎀

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✨ SYNOPSIS ✨

void spi_nor_region_check_overlay (struct spi_nor_erase_region *region ,
const struct spi_nor_erase_type *erase , const u8 erase_type );

it returns void btw — no return value, no drama, it just does the thing and leaves 🫶

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🦋 ARGUMENTS 🦋

• region — pointer to a structure that describes a SPI NOR erase region. this is the main character of the operation fr 💖
• erase — pointer to a structure that describes a SPI NOR erase type. the supporting cast 😌
• erase_type — erase type bitmask. it's a u8, so keep it smol and cute 🍓

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🌈 SEE ALSO 🌈

bestie the cross-references go CRAZY here, look at this whole friend group 👑

• Kernel file ./drivers/mtd/spi-nor/sfdp.c
• spi_nor_read_raw(9)
• spi_nor_read_sfdp(9)
• spi_nor_read_sfdp_dma_unsafe(9)
• spi_nor_set_erase_settings_from_bfpt(9)
• spi_nor_map_cmp_erase_type(9)
• spi_nor_sort_erase_mask(9)
• spi_nor_regions_sort_erase_types(9)
• spi_nor_parse_bfpt(9)
• spi_nor_smpt_addr_nbytes(9)
• spi_nor_smpt_read_dummy(9)
• spi_nor_get_map_in_use(9)
• spi_nor_init_non_uniform_erase_map(9)
• spi_nor_parse_smpt(9)
• spi_nor_parse_4bait(9)
• spi_nor_parse_profile1(9)
• spi_nor_parse_sccr(9)
• spi_nor_parse_sccr_mc(9)
• spi_nor_post_sfdp_fixups(9)
• spi_nor_check_sfdp_signature(9)
• spi_nor_parse_sfdp(9)

like, the whole sfdp.c squad pulled up 😭💜

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and that's the tea 🧚 lived in ./drivers/mtd/spi-nor, dated October 2026, and signed off by the manual itself with the title spi_nor_regi...heck_overlay(9) — slay, periodt 💅✨